The first game in the Halo series was released, marking the beginning of one of the most popular franchises in gaming.
The highly anticipated sequel to Halo: Combat Evolved was launched, featuring multiplayer capabilities that became a significant part of its success.
The third installment of the main Halo series was released on Xbox 360 and became a major hit, concluding the original trilogy.
The newest main canonical entry in the series was released, featuring new graphics engine and continuing Master Chief's story.